Merge pull request #496 from flipped-aurora/gva_gormv2_dev

修复casbin map占用问题

Author: 奇淼（piexlmax

server/core/server.go

@@ -29,7 +29,7 @@ func RunWindowsServer() {
 
 	fmt.Printf(`
 	欢迎使用 Gin-Vue-Admin
-	当前版本:V2.4.1
+	当前版本:V2.4.2
     加群方式:微信号：shouzi_1994 QQ群：622360840
 	默认自动化文档地址:http://127.0.0.1%s/swagger/index.html
 	默认前端文件运行地址:http://127.0.0.1:8080

server/service/sys_casbin.go

@@ -10,6 +10,7 @@ import (
 	gormadapter "github.com/casbin/gorm-adapter/v3"
 	_ "github.com/go-sql-driver/mysql"
 	"strings"
+	"sync"
 )
 
 //@author: [piexlmax](https://github.com/piexlmax)
@@ -88,12 +89,19 @@ func ClearCasbin(v int, p ...string) bool {
 //@description: 持久化到数据库  引入自定义规则
 //@return: *casbin.Enforcer
 
-func Casbin() *casbin.Enforcer {
-	a, _ := gormadapter.NewAdapterByDB(global.GVA_DB)
-	e, _ := casbin.NewEnforcer(global.GVA_CONFIG.Casbin.ModelPath, a)
-	e.AddFunction("ParamsMatch", ParamsMatchFunc)
-	_ = e.LoadPolicy()
-	return e
+var (
+	syncedEnforcer *casbin.SyncedEnforcer
+	once           sync.Once
+)
+
+func Casbin() *casbin.SyncedEnforcer {
+	once.Do(func() {
+		a, _ := gormadapter.NewAdapterByDB(global.GVA_DB)
+		syncedEnforcer, _ = casbin.NewSyncedEnforcer(global.GVA_CONFIG.Casbin.ModelPath, a)
+		syncedEnforcer.AddFunction("ParamsMatch", ParamsMatchFunc)
+	})
+	_ = syncedEnforcer.LoadPolicy()
+	return syncedEnforcer
 }
 
 //@author: [piexlmax](https://github.com/piexlmax)

web/src/main.js

@@ -149,7 +149,7 @@ export default new Vue({
 
 console.log(`
        欢迎使用 Gin-Vue-Admin
-       当前版本:V2.4.1
+       当前版本:V2.4.2
        加群方式:微信：shouzi_1994 QQ群：622360840
        默认自动化文档地址:http://127.0.0.1:${process.env.VUE_APP_SERVER_PORT}/swagger/index.html
        默认前端文件运行地址:http://127.0.0.1:${process.env.VUE_APP_CLI_PORT}